GASTEROPODA. 
85 
Lower. 
Middle 
Upper. 
SPECIES. 
1 
1 ^ 
's 
g 
1 
g 
1 
* 
.i 
a 
43 

a 
a 
n 
E 
5 
i 
'fi 
ft 
Bj 
1 
I 
g 
% 
i 
1 
1 
1 
1 
j 
ft 
M 
ZH 

3 
>-? 
6 
S 
09 
8 
(fi 
s 
j . 
o 
1 
1 
S 1 
a 
B S 
4 <! 
| 
E 
S 
1 
1 
S 
1 
| 
S 
S 
<J 
Trochus cont. 
pusillus, Simp., v. Pleuro- 
tomaria procera. 
redcarensis, Tate, 
T 
Type in Jm. 
Yorksh. Lias, p. 342, pi. 
i 
x., f. 14. 
Jm 
robigus, Tate, Yorksh. 
i 
T 
Type in Jm. 
Lias, p. 341, pi. x., f. 3, 
i 
a,b. 
Jm 
i 
similus, Sow., v. Pleuro- 
tomaria anglica. 
tiietis, Munster, Goldf., 
T 
p. 34, t. 179, f. 10 ; T. & 
B., p. 342. ' 
i 
2 
4 
Turbo : 
aciculus, Stoliczka, 
(Trochus) Sitz. K. i 
T 
2 
T? 
T.&B. (pl.ix.,f. 22) in 
Jm, 
Akad. Wiss., 1861, Bd. 
Jm 
xliii., p. 173, t. ii., f. 8 ; 
T. & B., p. 344, pi. ix., 
2 
f. 22. 
adductus, Simp., v. Eucy- I 
clus undulatus. 
aurcus, Simp., v. Ceri- 
thium Slatteri. 
buccinoides, Simp., v. 
Natica. 
Burtoni, Tate, v. T. 
solarium. 
_ 
canalis, Munster, v. PI. 
helicinoiucs. 
cirroides, Simp., v. Cryp- 
tccnia expansa. 
concinna, Simp., v. Eucy- 
clus imbricatus. 
cyclostoma, Ben/, 
Zieten, Verst. Wurt., 
T 
T 
T? 
T. & B. (pi. ix , f. 19) in 
t. 33, f. 4; T.&B.,p. 344, 
pi. ix., f. 19, 20. 
1 
Jm 
i 
2 
Jm. 
defossus, Simp., v. Turri- 
tella Dunkeri. 
elegans, Munster, v. 
Eucyclus. 
exemptus, Simp., v. Hy- 
>drobia solidula. 
ferreus, Simp., v. Chem- 
nitzia citharella. 
% 
helicinoides, Rom., v. 
Pleurotomaria. 
! 
